

The optimal \(\varpi _{\mathrm {t}}\)  can be expressed as [1]}
\(\begin{aligned}\varpi _{\mathrm {t}}^\star = \max \left\lbrace \frac{f_{k}}{g_{k}}\right\rbrace ,~~\forall k\in \mathcal {K}_\mathrm {t}.\end{aligned}\) 
